Improvement in oil-cake envelopes



UNITED STATES PATENT CFFICE.

CYRUS ESKRETT AND HENRY SEARLE, OF HULL, ENGLAND.

IMPROVEMENT IN OIL-CAKE ENVELO'PES.

Specification forming part of Letters Patent No. 108,774, dated Novemberl, 1870.

To all whom, iff/may concern:

Be it known that we, GYRUs EsKRET'r and HENRY SEARLE, both of Hull, inthe county of York, England, have invented new and useful Improvementsin Oil-Cake Envelopes or Hairs; and we do hereby declare that thefollowing is a full, clear, and exact description thereof, which willenable others skilled in the artA to make and use the same, referencebeing had to the accompanying drawings, forming part of thisspecification.`

Our invention consists in constructing an apparatus in the mannerhereinafter described, which shall serve the purpose of the ordinaryhairs now used in extracting oil from oleaginous seeds and in oilcakemaking, such hairs being very expensive and uneconomical, while ourapparatus will be found economical and efficient. W'e construct ourenvelopes or hairs by fitting together strips or pieces of wood, so asto form a corrugated plate or board of a form similar to the face of thehair now in general use for seed-crushing and oilcake making purposes.Each corrugation should be made out of a separate piece of wood placedtransversely, and as many such pieces should be put together as may berequired to make up the proper length for the sizeof cake required to beproduced by the use of the hairs. These envelopes or hairs can be madeout of one piece of timber or any number of pieces. At each side or edgeof the board, which may be, say, for example, about three-quarters of aninch wide,we x, instead of the corrugatedboard or corrugated pieces, ahair rope, or piece of leather, or other similar yielding substance; orwe even use wood or other such like substance. Two such boards are to beused, one to be placed above the cake and the other beneath, and whilein the press both boards should be attached to each other.

Figure l is a face view of our improved envelope open. Fig. 2 is an edgeview closed. Fig. 3 is a back view closed. Fig. 4 is a section showingcorrugation.

Similar letters of reference indicate corresponding parts.

In the said figures, Adenotes the corrugated part; B, the horse hairedge; B, leather edges; C, hinges; D, handle for putting in and takingout the envelopes from the press. E

denotes the stitching (through the board) for v hair edges,the saidcorrugations running transversely, all substantially as specified.

The above specification of our invention signed by us this 18th dayofAugust, 1870. CYRUS ESKRETT. HENRY SEARLE. Witnesses:

ANDREW MARvEL J AcKsoN,

Park Row, Hull. WILLIAM FRANCIS BRAKE EYRE,

Thomas Street, Hull.

